First of all, I'd like to thank the developers for making this excellent emulator.
I'm using an LG G3 (2560x1440 screen resolution) in landscape mode. I'd like to have one screen at 8x scale and the other at 2x. The problem is, there is no 8x option in the layout editor! I'm aware that this would cut off 12 pixels vertically from the bigger screen (1440 / 8 = 180, the DS' resolution is 256 × 192) but I doubt it would be a problem in most games. Could this be added in a future version? I don't imagine it would be too hard to implement.
On a similar note, would it be possible to add 3x/4x filters, preferably xBR? 2x just doesn't quite cut it at this sort of resolution.